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4 <br />M0LJND-S,VWW <br />City of Mounds View Staff Report <br />Item No: 8F <br />Meeting Date: February 22, 2021 <br />Type of Business: CB <br />Administrator Review: <br />To: Honorable Mayor and City Council <br />From: Don Peterson, Director of Public Works/Parks and Recreation <br />Item Title/Subject: Resolution 9402, Authorizing AE2S Inc. (Advanced Engineering <br />and Environmental Services, Inc.) to complete final design plans <br />and prepare documents and specifications for bidding for the <br />Water Treatment Plant Rehabilitation Project, Phase II <br />Background/Discussion: <br />The Public Works Department has many responsibilities including efficiently operating the <br />water distribution system. The system includes (6) wells, an elevated water tower, a <br />ground reservoir, a booster station and (3) water treatment plants; years they were built: <br />Facility <br />Built <br />Well 1 <br />1961 <br />Well 2 <br />1962 <br />Well 3 (WTP 1) <br />WTP 1 Upgraded <br />1970 <br />1991 <br />Well 4 <br />1971 <br />Well 5 (WTP 2) <br />1971 <br />Well 6 WTP 3 <br />1971 <br />Ground Reservoir <br />1971 <br />Booster Station <br />1971 <br />Water Tower <br />1992 <br />The water treatment systems have been in operation for over 45 years with no major <br />upgrades or repairs to the system. Routine maintenance has been performed on the well <br />motors and pumps and the operating systems and controls have had only minor repairs. <br />Public Works has discovered that many of the components are obsolete and no longer <br />are available to make repairs. <br />The City Council approved the Water Treatment Rehabilitation Project, Res. 9091, at the <br />March 25, 2019 City Council Meeting. The Council awarded the contract for Phase I of <br />the Water Treatment Project, Res. 9174, at the December 9, 2019 meeting. <br />During the initial water study and testing at Water Treatment Plant No. 1 the Minnesota <br />Department of Health (MDH) brought to the attention of AE2S and Staff, that WTP No. 1 <br />had combined radium results above the regulated maximum contaminant level (MCL). <br />Due to this discovery, Water Treatment Plant No. 1 was removed from the scope of <br />bidding with WTP2, WTP3 and the Booster Station. The City Council approved a pilot <br />study at WTP1 be completed at the October 9, 2019 City Council meeting, Res. 9174. <br />